METHOD
1. Sprinkle yeast over the soy milk and whisk to dissolve. Add puree, flours, salt, sugar, and oil and bring into a soft dough, adjusting flour or liquid as needed. Knead for 5 mins, until smooth.
2. Place dough in a greased bowl, cover, and let rise for 1 hour, or until doubled in size.
3. Line two 9 inch round pans with parchment paper. Slice off 2 oz pieces of dough and work into a ball. Place in the prepared pan just touching one another. When pans are filled, brush buns with some oil, cover, and let rise for 30-40 mins, until almost doubled.
4. Preheat oven to 400 then bake for 15-18 mins, or until golden brown. Remove from pan to cool on a wire rack. Serve warm, letting your dinner guests pull off rolls as needed.

You can very easily freeze a pan of these when they are cooled, then thaw/warm them when you need them.